HP EliteDesk 800 G6 Maintenance and Service Guide - Page 69

Solving power problems, Power supply shuts down intermittently, Computer turned off automatically

Get HP EliteDesk 800 G6 PDF manuals and user guides View all HP EliteDesk 800 G6 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 69 highlights

Cause Solution 3. Check that the power supply cables are properly connected to the system board. 4. Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button assembly. 5. If the 5V_aux light on the system board is off, then replace the power supply. 6. Replace the system board. Solving power problems These tables provide common causes and solutions for power problems. Power supply shuts down intermittently Use this information to troubleshoot the computer. Cause Solution If the computer has a voltage selector, voltage selector switch on rear of computer chassis (some models) not switched to correct line voltage (115 V or 230 V). Select the proper AC voltage using the selector switch. Power supply will not turn on because of internal power supply Replace the power supply. fault. Computer turned off automatically, power light blinks red two times followed by a two-second pause, and the computer beeps two times (Beeps stop after fifth iteration but lights continue blinking) Use this information to troubleshoot the computer. Cause Solution Processor thermal protection activated. A fan might be blocked 1. or not turning, or the heat sink is not properly attached to the processor. 2. 3. Be sure that the computer air vents are not blocked and the processor cooling fan is running. Open the access panel, press the power button, and see if the processor fan (or other system fan) spins. If the fan does not spin, be sure that the fan cable is plugged onto the system board header. If the fan is plugged in and not spinning, replace it. Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth iteration but lights continue blinking) Use this information to troubleshoot the computer. Solving power problems 59

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
Cause
Solution
3.
Check that the power supply cables are properly connected
to the system board.
4.
Check to see if the 5V_aux light on the system board is
turned on. If it is turned on, then replace the power button
assembly.
5.
If the 5V_aux light on the system board is
off,
then replace
the power supply.
6.
Replace the system board.
Solving power problems
These tables provide common causes and solutions for power problems.
Power supply shuts down intermittently
Use this information to troubleshoot the computer.
Cause
Solution
If the computer has a voltage selector, voltage selector switch
on rear of computer chassis (some models) not switched to
correct line voltage (115 V or 230 V).
Select the proper AC voltage using the selector switch.
Power supply will not turn on because of internal power supply
fault.
Replace the power supply.
Computer turned
off
automatically, power light blinks red two times followed by a
two-second pause, and the computer beeps two times (Beeps stop after
fifth
iteration but lights continue blinking)
Use this information to troubleshoot the computer.
Cause
Solution
Processor thermal protection activated. A fan might be blocked
or not turning, or the heat sink is not properly attached to the
processor.
1.
Be sure that the computer air vents are not blocked and the
processor cooling fan is running.
2.
Open the access panel, press the power button, and see if
the processor fan (or other system fan) spins. If the fan does
not spin, be sure that the fan cable is plugged onto the
system board header.
3.
If the fan is plugged in and not spinning, replace it.
Power light blinks red four times followed by a two-second pause and the
computer beeps four times (Beeps stop after
fifth
iteration but lights continue
blinking)
Use this information to troubleshoot the computer.
Solving power problems
59